The Mouse Microsoft IntelliMouse Optical 1.1 is a classic white standard mouse with optical tracking method and a maximum DPI of 400. It features 2 buttons, including a scroll wheel for easy navigation. With both PS/2 and USB connectivity options, this retro mouse is a reliable choice for users looking for a durable and efficient pointing device. The Microsoft brand ensures quality and reliability, making it a versatile option for various computer setups.